[skara] RFR: cli: make it possible to configure forge name [v2]

[Erik Helin]

> Hi all,
> 
> please review this patch that makes it possible to configure the forge name for a repository using `git config forge.name`, for example `git config forge.name github`. This can be useful for speeding up the forge selection logic in `Forge.from` so that the code doesn't have to query multiple candidate forges.
> 
> Testing:
> - [x] Manual testing on Linux x64
> 
> Thanks,
> Erik

Erik Helin has updated the pull request incrementally with one additional commit since the last revision:

  Store forge name

-------------

Changes:
  - all: https://git.openjdk.java.net/skara/pull/1076/files
  - new: https://git.openjdk.java.net/skara/pull/1076/files/113a7e11..bf5d450a

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=skara&pr=1076&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=skara&pr=1076&range=00-01

  Stats: 18 lines in 1 file changed: 17 ins; 0 del; 1 mod
  Patch: https://git.openjdk.java.net/skara/pull/1076.diff
  Fetch: git fetch https://git.openjdk.java.net/skara pull/1076/head:pull/1076

PR: https://git.openjdk.java.net/skara/pull/1076